A view of SeaWorld San Antonio's latest water attraction, Aquatica, from the top of Stingray Falls. The attraction will open to the public on May 19. The water park features several new rides including Stingray Falls where guests can get a unique view of sting rays as they float pass an underwater grotto. The park also has 42,000 square feet of beach area and a variety of rides for all ages. Kin Man Hui/Express-News.

A view of SeaWorld San Antonio's latest water attraction, Aquatica, from the top of Stingray Falls. The attraction will open to the public on May 19. The water park features several new rides including Stingray

A killer whale leaps into the air during a show at SeaWorld San Antonio last year. SeaWorld is now open on weekends.

A killer whale leaps into the air during a show at SeaWorld San Antonio last year. SeaWorld is now open on weekends.

Photo: MARVIN PFEIFFER

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SeaWorld's new audience: investors

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NEW YORK — Looks like Shamu soon may be making a splash in the stock market.

The company famous for water shows featuring killer whales, dolphins and other animals at SeaWorld said Thursday that it is planning to go public. SeaWorld Entertainment Inc. has filed for an initial public offering of stock aimed at raising $100 million. That number is likely to change as the company's bankers gauge interest from investors.

From its origins as a Busch Gardens animal park at Anheuser-Busch's Tampa, Fla., Budweiser brewery, the company has grown to span 11 theme parks housing 67,000 animals. Besides the three SeaWorld parks, including the one in San Antonio, the company owns two Busch Gardens parks and Sesame Place, an amusement park based on the children's TV show Sesame Street.

The company warns that its business is dependent on customers' willingness to spend on leisure and entertainment, which might be a tough proposition in a still-weak U.S. economy. Still, SeaWorld's revenue has risen in the three years that it's been owned by private equity firm Blackstone Group LP. The company has looked for ways to stay competitive in the current market, branching out this year with a Saturday morning television show, “Sea Rescue,” on the ABC network to attract young viewers.

Blackstone is expected to sell some of its stock in the IPO but keep a majority stake, SeaWorld said in a filing with the Securities and Exchange Commission. SeaWorld plans to use money raised in the IPO to pay down debt and to make a payment to the New York-based firm.

Blackstone bought SeaWorld, formerly Busch Entertainment Corp., from beer brewer Anheuser-Busch InBev in 2009 for $2.3 billion. The Belgian company was shedding assets to help pay for its $52 billion takeover of St. Louis-based Anheuser-Busch in 2008.

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Anheuser-Busch started Busch Gardens in Tampa in 1959. In 1989, the beer company bought SeaWorld, which opened a park in San Diego, Calif., in 1964. SeaWorld now is based in the theme park mecca of Orlando, Fla., also home to Walt Disney Co.'s Walt Disney World resort and Universal Studios. More than half of the company's revenue is generated in Florida.

SeaWorld said about 24 million people attended its 11 parks during the 12 months ended Sept. 30. The company did not disclose how that figure has grown or shrank in the past few years, but says it has a “stable attendance base.” In the first nine months of 2012, SeaWorld's profit jumped 73 percent to $86.2 million from $50 million a year earlier, as revenue rose nearly 8 percent to $1.16 billion.

Some of the company's competitors have had a difficult climb back from the recession. Amusement park operator Six Flags Entertainment Corp. filed for Chapter 11 bankruptcy protection in 2009, emerging in mid-2010. It has been growing revenue since then, although it posted a loss in 2011. Six Flags owns Fiesta Texas in San Antonio.

SeaWorld, which plans to trade under the ticker “SEAS” on the Nasdaq, did not name a date for its IPO or detail how many shares will be sold, and at what price, in its filing with regulators. But SeaWorld did warn investors of the risks involved with having its animals interact with human visitors, noting that accidents could hurt its parks' reputation and attendance. In 2010, a trainer at its SeaWorld Orlando park was killed by an orca, or killer, whale. Last month, an 8-year-old Georgia girl said a dolphin at the same Orlando park bit her hand while she fed the animal as part of an attraction.